Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

Administrative data

Endpoint:
toxicity to aquatic algae and cyanobacteria
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method C.3 (Algal Inhibition test)
Qualifier:
according to guideline
Guideline:
OECD Guideline 201 (Alga, Growth Inhibition Test)
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent

Test organisms

Test organisms (species):
Desmodesmus subspicatus (previous name: Scenedesmus subspicatus)

Results and discussion

Effect concentrationsopen allclose all
Duration:
72 h
Dose descriptor:
other: Eb C50
Effect conc.:
> 0.069 mg/L
Duration:
24 h
Dose descriptor:
other: Er C50
Effect conc.:
> 0.069 mg/L

Any other information on results incl. tables

Water hardness was not recorded.

0.069 mg/l (50% saturated solution) was the highest test concentration that could be prepared due to the low solubility of the test material in water and auxiliary solvents.All results are based on mean measured concentration of the fresh and expired media, concentrations did not decline over the 72 hour test period.

Applicant's summary and conclusion